Did you know space is really^really big?

Started by Legend, Mar 03, 2015, 03:54 PM

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Legend

Video is just the best source I could find to show this, but basically space is so much bigger than you imagine. It really irks me in no man's sky that they're acting like their universe is to our scale. I mean it probably makes for a better game, but nothing they've shown comes even close.

https://www.youtube.com/watch?v=gIbfYsQfNWs

BasilZero

Quote from: Legend on Mar 03, 2015, 03:54 PM
Video is just the best source I could find to show this, but basically space is so much bigger than you imagine. It really irks me in no man's sky that they're acting like their universe is to our scale. I mean it probably makes for a better game, but nothing they've shown comes even close.

PR.

Gotta sell the game with a good hook.

Raven

I think the claim for No Man's Sky is the number of star systems you can visit but even then I'm pretty sure it's not to scale. I mean, clearly the distances and scale of celestial bodies are not even close.

DD_Bwest


the-pi-guy

Yeah, its pretty flipping huge. 
Thinking about it actually scares me. 

darkknightkryta

Yeah space is huge, there's also no center. Though I suppose there can be an "end" of some sorts since space expands and is likely to have a boundary.

Legend

Quote from: darkknightkryta on Mar 03, 2015, 06:48 PM
Yeah space is huge, there's also no center. Though I suppose there can be an "end" of some sorts since space expands and is likely to have a boundary.

Or at least a boundary as far as stuff emanating from the big bang is concerned.

Legend

Quote from: Raven on Mar 03, 2015, 05:14 PM
I think the claim for No Man's Sky is the number of star systems you can visit but even then I'm pretty sure it's not to scale. I mean, clearly the distances and scale of celestial bodies are not even close.

Yeah, but then we have games like Elite Dangerous that are perfect 1 to 1 replicas of our galaxy.

the-pi-guy

Centers, boundaries, and the expansion of the universe are difficult subjects. 

You could always have an arbitrary center.  ;)

Is there a boundary to the universe?  It is generally accepted that there is none. 

Now, the expansion of the universe is really difficult to grasp, because it's not a point, it's the entire plane.  Some may say that the universe must be expanding into something, but that's not really the case. 
Let's make a graph, negative infinity on one side and positive infinity on the other side, well, what if I double the size.  That sounds crazy, but there are different types of infinity. 
Assume that An = 2n; 
A is an even number, we can come up with an infinite number of A that would fit this description. 
Now assume that An = 2n+1;
A is an odd number, we can come up with an infinite number of A that would fit this description. 
So infinite odd, infinite even numbers. 
So, we can come up with an infinity that is twice as big as either of these numbers, which would be an even bigger infinity. 

BananaKing

i believe that the human mind cant truly comprehend how big the universe really is. its so big that really, the human mind wont ever be able to understand it unless its presented with some numbers.

BananaKing

also, first of all, no mans sky never claimed to be an entire universe, the game is just one galaxy. there is a big big big big difference between a universe and galaxy. second of all, they never claimed to be the exact replica in size and scale, but more of a galaxy that has approximately the same number of stars/planets. they actually talked about the distance between planets/stars and said they had to reduce it for gameplay and artistic reasons.

darkknightkryta

Quote from: the-Pi-guy on Mar 03, 2015, 07:42 PM
Centers, boundaries, and the expansion of the universe are difficult subjects. 

You could always have an arbitrary center.  ;)

Is there a boundary to the universe?  It is generally accepted that there is none. 

Now, the expansion of the universe is really difficult to grasp, because it's not a point, it's the entire plane.  Some may say that the universe must be expanding into something, but that's not really the case. 
Let's make a graph, negative infinity on one side and positive infinity on the other side, well, what if I double the size.  That sounds crazy, but there are different types of infinity. 
Assume that An = 2n; 
A is an even number, we can come up with an infinite number of A that would fit this description. 
Now assume that An = 2n+1;
A is an odd number, we can come up with an infinite number of A that would fit this description. 
So infinite odd, infinite even numbers. 
So, we can come up with an infinity that is twice as big as either of these numbers, which would be an even bigger infinity. 
My hypothesis is that there is an end.  Space is only as big ad time allows it to be.  However big that is, is dependent on how old the universe is.

Legend

Quote from: darkknightkryta on Mar 03, 2015, 09:39 PM
My hypothesis is that there is an end.  Space is only as big ad time allows it to be.  However big that is, is dependent on how old the universe is.

But time is relative!

And who's to say what's before the big bang, or if the big bang was the only big bang?


Imagine if big bangs are like galaxys. There are billions of them out there, it's just they're so incredibly far apart that they have no classical communication between them.

darkknightkryta

Quote from: Legend on Mar 03, 2015, 10:04 PM
But time is relative!

And who's to say what's before the big bang, or if the big bang was the only big bang?


Imagine if big bangs are like galaxys. There are billions of them out there, it's just they're so incredibly far apart that they have no classical communication between them.
Well one theory is that two branes(universe) collided together giving the energy needed to create our own universe.  What we do know od that our UK verse came from a singularity of infinite energy.  The "Big Bang" came out of that singularity.

Legend

Quote from: darkknightkryta on Mar 03, 2015, 10:34 PM
Well one theory is that two branes(universe) collided together giving the energy needed to create our own universe.  What we do know od that our UK verse came from a singularity of infinite energy.  The "Big Bang" came out of that singularity.

Yeah string theory/m theory is great. Not a lot of real world support for it at this time, but the math is just too perfect for it to not at least be on the correct ballpark.

Well we don't know if our universe's big bang's singularity had infinite energy. Really it's possible that there never even was a singularity. The few hundred thousand years after the bang are just guesswork at this stage.